How to change the default views of quad view?
Quad view can be unlocked and customized.
For blender 2.8
Select quad view.
(CTRLAltQ or select View &gt; Area &gt; Toggle Quad View
Open the properties panel on the right and unselect  &quot;lock&quot;.

To customize the view move the mouse over to the quad you want to alter and make it whatever view you want.
In this case press CtrlNumpad 1 for back view. (and Numpad 5&lt; to toggle ortho or perspective).

Note: Any changes on quad view are lost once you go back to single view: The next time you switch to quad view it will revert to the default configuration.

For older versions (2.7x) of blender
While on Quad view (CTRLAltQ) press N to show the Properties panel on the right side. In the Display tab uncheck the Lock box.

When you are satisfied you can lock the view again to prevent accidental changes.
To reverse the view on quad view. Hover over the view you want to change and press Numpad 9  to reverse the view. No need to press unlock